During the Royal Wedding mayhem on Friday, Katy Perry took to her Twitter to personally congratulate the couple and post this photo of her totally awesome (wacky) nails. She's sporting everything from baby Wills to the couple's engagement pic right on her fingertips.

While this isn't the first time Katy's rocked some fabulous nail art, this takes it to a whole new level. Imagine the possibilities (boyfriend, puppy, Katy Perry's album cover) if you could slap a mini version of any photograph right onto your nails. So we did some research to track down the technology responsible—because who doesn't want to wear this look?

It turns out that some nail salons have special digital printers that allow you to turn images into nail polish. Basically, you upload a photo to the computer, stick your hand inside the special printer and emerge with the image painted on your nails—and it lasts up to two weeks. The most popular machine is called the ImagiNail, and it's available all over the country. While it's designed specifically for salons, we did find something that you can actually buy to use at home...Barbie (yes, that Barbie) makes a gadget called the Barbie Dolled up Nails Digital Nail Printer, which you can buy on Amazon.com for $160. We're not advocating that you add it to your shopping cart right this second, but if you have any aspirations of copying Katy's nails, you might want to consider it.